So I started doing box squats after I started to stall on regular front squat and started having knee pain. I switched to box and it was working at first, but now causes me pain but ONLY when coming up from the bench. squatting down causes no pain. Sadly, I don't have a video and I'm taking at least 3 weeks off of any squatting and taking lots of cissus in the meantime. Anyone ever had this problem? I'm doing front squats because I have damage in my shoulders, so barbell back hurts even with high bar and my shoulders just recently started feeling better so I don't want to flare up old injuries.